To configure your mouse (or reconfigure your mouse after installation)
enter the command /usr/sbin/mouseconfig.
Scroll down the list with the arrow keys until your mouse type is
highlighted. If you have any mouse connected to a PS/2 style
port you should select ``PS/2'' as your mouse type. If you have a
mouse connected to a mouse port on an ATI video card you should
select ``ATI Bus Mouse''. If you have a 2 button mouse and want to
emulate the third (middle) mouse button with a simultaneous click
of the left and right mouse buttons use 
to move the
cursor to the ``Emulate 3 Bottons'' checkbox and press 
to toggle the selection.